Brita vs ZeroWater for PFAS: Which Filter Performs Better?

You turn on the tap, fill a glass, and assume the water is clean. If you have been paying attention to the news about PFAS, those so-called “forever chemicals,” you know that assumption does not hold up the way it used to. PFAS have been found in drinking water systems across the country, and a pitcher filter is one of the simplest ways to cut your family’s exposure at home.

Brita and ZeroWater are the two names that come up most often, and both say they can handle PFAS. But the technology behind each one is very different, and so are the certifications. This guide walks through what each filter actually does, what the test data says, and which one makes more sense depending on your situation.

For more on PFAS-free living, see our guide to PFAS distillation and removing PFAS from well water.

Why PFAS in drinking water matters

PFAS (per- and polyfluoroalkyl substances) are a class of thousands of synthetic chemicals that resist heat, water, and oil. They got the nickname “forever chemicals” because they stick around in the environment and build up in the human body over time. A 2023 review in eBioMedicine connected PFAS exposure to thyroid problems, immune system changes, higher cholesterol, and developmental concerns in children.

Drinking water is one of the most direct ways people are exposed. The EPA set enforceable limits on six PFAS compounds in 2024, but plenty of municipal systems are still catching up. A good pitcher filter can fill that gap while the bigger infrastructure fixes work their way through.

How the two filters work

These two brands take fundamentally different approaches.

Brita Elite uses activated carbon filtration. Carbon filters do a good job reducing chlorine taste, sediment, and a range of organic contaminants. The Elite version (not the older Standard filter) has been upgraded to handle newer contaminants, including PFAS. It carries NSF 401 certification, which covers pharmaceuticals and specific PFAS compounds like PFOS and PFOA.

ZeroWater uses a 5-stage ion exchange system. Instead of just adsorbing contaminants onto a carbon surface, ion exchange swaps dissolved solids in the water for hydrogen and hydroxide ions. The result is water that reads 0 TDS (total dissolved solids) on a meter. ZeroWater is IAPMO certified for 95.1% removal of PFOA and PFOS, and also holds NSF 42 and NSF 53 certifications.

The bottom line: Brita’s carbon approach works well for taste and basic contaminant reduction. ZeroWater’s ion exchange is more aggressive and strips out nearly everything dissolved in the water, PFAS included.

PFAS removal: head to head

This is where the numbers do the talking.

ZeroWater publishes a specific figure: 95.1% removal of PFOA and PFOS, certified through IAPMO testing. That is a measurable, third-party-verified claim.

Brita Elite is certified under NSF 401 for “emerging contaminants” that include PFOS and PFOA, but Brita does not publish a specific removal percentage for PFAS on its consumer materials.

Brita Standard (the basic filter that ships with most Brita pitchers) does not remove PFAS at all. If you have been using a Standard Brita filter and assumed it was handling PFAS, it is not. You need to switch to the Elite filter.

Worth noting: both filters target the longer-chain PFAS compounds (PFOA and PFOS) that get tested most often. Shorter-chain variants like PFBS and PFBA are harder for any pitcher filter to catch. If your water has high levels of short-chain PFAS, you may need something more serious like reverse osmosis.

Our top pick for PFAS removal

Based on the test data available, ZeroWater has the stronger documented claim. Their 10-cup pitcher is a good place to start:

Culligan ZeroWater 10-Cup Pitcher Water Filter - Removes PFAS

This pitcher uses ZeroWater’s 5-stage filtration and comes with a TDS meter so you can tell when the filter needs replacing. It is IAPMO certified to reduce lead, PFOA/PFOS, chromium, and mercury.

If you want even more protection, pairing a pitcher with an under-sink system gives you an additional layer of filtration.

Beyond PFAS: other differences worth knowing

PFAS removal is the main comparison here, but a few other practical differences come into play when you are living with these filters day to day.

Brita Elite filters last about 120 gallons, which works out to roughly 6 months for a typical household. ZeroWater filters vary depending on your water’s TDS level. In areas with hard water or lots of dissolved solids, you might be replacing ZeroWater filters every 2 to 3 months, and that adds up.

On taste, ZeroWater produces very pure water because of that aggressive ion exchange. Some people love it. Others find it flat compared to water with natural minerals left in. Brita filtered water keeps some of those minerals, which a lot of people prefer.

Replacement filters for ZeroWater cost more per unit, too. If your water source is demanding, that cost difference compounds over time. Brita replacements are generally cheaper and last longer.

Getting the most from your pitcher filter

Whichever filter you go with, a few habits help it work better. Replace filters on schedule, because an overused filter loses effectiveness and can actually release contaminants back into the water. ZeroWater’s included TDS meter makes tracking this straightforward. Always start with cold water, since hot water can reduce filter effectiveness and pull contaminants from your pipes.

If your municipal water report shows elevated PFAS levels, a pitcher filter is a solid first step but probably not the whole solution. You may want to look at a whole-house or reverse osmosis system for more thorough protection. And if you are not sure what is in your water, home test kits from companies like SimpleLab can tell you exactly which contaminants are present so you can choose the right filter.

For a broader reduction strategy, check out our guide to top PFAS free water filters and the comprehensive PFAS Free Life Database.

Frequently Asked Questions

Does Brita remove PFAS from drinking water?

The Brita Elite filter is NSF 401 certified and claims to reduce certain PFAS compounds including PFOS and PFOA. However, older Brita Standard filters do not remove PFAS at all. If PFAS removal is your priority, make sure you are using the Elite filter, not the Standard.

Does ZeroWater remove PFAS?

Yes. ZeroWater’s 5-stage ion exchange filter is IAPMO certified to remove 95.1% of PFOA and PFOS. It also holds NSF 42 and NSF 53 certifications for additional contaminants like lead and chromium.

Which water filter pitcher is best for PFAS removal?

Based on published test data, ZeroWater currently leads with a certified 95.1% PFAS removal rate. Brita Elite is also certified for PFAS reduction under NSF 401, though specific removal percentages are not publicly listed. For the highest documented PFAS removal in a pitcher filter, ZeroWater has the edge.

*Research reference: eBioMedicine 2023

Toxicological Sciences*